I have the same exact camera. Do the "planetarium test" and then decide. If you only have the one hole, patching is a good option. If the bellows is really shot, you will have to replace it. You can get recessed boards easily on Ebay, or direct from Calumet. The shortest lens that will fit at the usual shooting distances without a recessed board, and the front/back frames snug against each other is about 105mm. There will be a bit of vignetting with most cheaper lenses such as the Tessars. If you are shooting macro, the lens is further away from the film surface though.